DESCRIPTION
General 02−10−1
Bleed Air System 02−10−4
Bleed/Anti-Ice Synoptic 02−10−6
Bleed Management Controllers (BMC) 02−10−8
Engine Bleed Air 02−10−9
APU Bleed Air 02−10−10
Bleed Leak Detection 02−10−12
Air Conditioning Controls 02−10−14
Air Conditioning System 02−10−15
Air Conditioning Packages (PACKS) 02−10−17
Cooling Packs 02−10−18
Flow Control System 02−10−20
Ram Air Ventilation 02−10−22
Temperature Control 02−10−23
Temperature Control − AUTO 02−10−24
Temperature Control − MAN 02−10−27
Air Conditioning Bleed Leak Detection 02−10−28
Air Distribution and Exhaust 02−10−29
Flow Control 02−10−29
Air Distribution and Flow Paths 02−10−30
Gasper Supply 02−10−30
Cockpit Ventilation 02−10−31
Recirculation 02−10−32
Avionics and Cockpit Display Ventilation 02−10−33
Auxiliary Pressurization 02−10−34
Humidifier System (Option) 02−10−35
Pressurization 02−10−38
Modes of Operation 02−10−41
Automatic Mode 02−10−41
Automatic Pre-Pressurization Sequence On Ground 02−10−43
Take-Off Sequence 02−10−44
Flight Sequences with FMS (Primary Mode) 02−10−46
Flight Sequences without FMS (Secondary Mode) 02−10−49
Landing Sequence at Field Elevation greater than 5,670 Feet 02−10−50
Landing Sequence at Field Elevation greater than 7,230 Feet 02−10−51
Landing Sequence at Field Elevation greater than 5,670 Feet − Levelling Off
During Descent 02−10−51
Take-Off at Field Elevation greater than 7,230 Feet 02−10−54
AIR CONDITIONING AND PRESSURIZATION
TABLE OF CONTENTS
CHAPTER 2
02−00−1
Rev 12, Aug 14, 2006 Flight Crew Operating Manual
CSP 700−5000−6
Volume 2
02−00−1
Page
TABLE OF CONTENTS
DESCRIPTION
Aborted Take-Off Above 7,230 feet 02−10−55
Rate Limit Selection 02−10−55
Landing Elevation 02−10−56
Manual Mode 02−10−58
Manual Mode Operation 02−10−59
Outflow Valves (OFV) 02−10−61
Safety Valves 02−10−61
System Safeties 02−10−62
Overpressure Relief 02−10−62
Negative Pressure Relief 02−10−62
Cabin Altitude Limitation 02−10−63
Outflow Valve Travel Limiter 02−10−63
Ditching 02−10−63
Emergency Depressurization 02−10−64
Close Outflow Valve 02−10−64
Door Open Protection 02−10−65
EICAS Philosophy 02−10−66
Bleed/Air Conditioning/Pressurization EICAS Messages 02−10−67
EMS CIRCUIT PROTECTION
CB − Air Cond/Press System 02−20−1
CB − Bleed System 02−20−2
AIR CONDITIONING AND PRESSURIZATION
TABLE OF CONTENTS
Flight Crew Operating Manual Rev 12, Aug 14, 2006
CSP 700−5000−6
Volume 2
02−00−2
Page
GENERAL
The Environmental Control System (ECS) performs the following functions:
• Provides fresh air supply.
• Provides ram air in the event of total loss of ECS.
• Provides air for pressurization control.
• Controls cockpit and passenger compartment temperature control.
• Provides sufficient airflow for emergency pressurization.
• Provides air recirculation.
• Provides cooling for the the avionics rack.
• Exhausts the air from the cockpit and cabin.
• Exhausts the air from the toilets and galleys.
• Exhausts the air from the under floor avionics bay, avionics rack, and cockpit displays.
• Provides indications and warnings to EICAS and maintenance information to the Central
Aircraft Information Maintenance System (CAIMS).
Bleed Air System
The Bleed Air System is controlled during all phases of operation by two Bleed Management
Controllers (BMC). The BMCs provide indications and warnings to EICAS and maintenance
information to CAIMS.
The Bleed Air System, in normal flight operations, supplies air from the engines, to the ECS and
Wing and Cowl Anti-Ice systems. For more information see Chapter 14, ICE AND RAIN
PROTECTION.
On the ground, air is normally supplied from the APU. A high pressure ground air supply unit, or
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